package com.atguigu.gulimall.cart.controller;

import com.atguigu.common.constant.AuthServerConstant;
import com.atguigu.gulimall.cart.interceptor.CartInterceptor;
import com.atguigu.gulimall.cart.service.CartService;
import com.atguigu.gulimall.cart.vo.Cart;
import com.atguigu.gulimall.cart.vo.CartItem;
import com.atguigu.gulimall.cart.vo.UserInfoTo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import java.util.List;
import java.util.concurrent.ExecutionException;

/**
 * @author 马迎迎
 * @Title: CartController
 * @Package com.atguigu.gulimall.cart.controller
 * @Description: TODO(添加描述)
 * @date 2021年05月28日 10:43
 */
@Controller
public class CartController {
    @Autowired
    private CartService cartService;


    @ResponseBody
    @GetMapping("/currentUserCartItems")
    public List<CartItem> getCurrentUserCartItems(){

        return cartService.getUserCartItems();

    }
    @GetMapping("/deleteItem")
    public String deleteItem(@RequestParam("skuId") Long skuId){
        cartService.deleteItem(skuId);
        return "redirect:http://cart.gulimall.com/cartList.html";
    }

    @GetMapping("/checkItem")
    private String checkItem(@RequestParam("skuId") Long skuId,@RequestParam("check") Integer check){
        cartService.checkItem(skuId,check);
        return "redirect:http://cart.gulimall.com/cartList.html";
    }

    @GetMapping("/countItem")
    private String countItem(@RequestParam("skuId") Long skuId,@RequestParam("num") Integer num){
        cartService.countItem(skuId,num);
        return "redirect:http://cart.gulimall.com/cartList.html";
    }
    /**
     * 浏览器cookie有一个user-key来标识用户身份 一个月后过期
     * 第一次使用购物车功能 都会给一个临时用户身份userkey 浏览器以后保存 每次访问都会带上
     *
     * 登录 session里有
     * 没登录：使用cookie中的userkey标识用户身份
     * 如果没有临时用户 创建一个临时用户
     * @param
     * @return
     */
    @GetMapping("cartList.html")
    public String cartListPage(Model model) throws ExecutionException, InterruptedException {
        //1.快速得到用户信息 id:user-key

        Cart cart = cartService.getCart();
        model.addAttribute("cart",cart);
        return "cartList";
    }
    /**
     * 添加商品到购物车
     * RedirectAttributes
     * redirectAttributes.addFlashAttribute() 将数据放在session里面，在页面可以取出 但只能取出一次
     * redirectAttributes.addAttribute("skuId",skuId); 数据拼接到url后面
     */
    @GetMapping("/addToCart")
    public String addToCart(@RequestParam("skuId") Long skuId,
                            @RequestParam("num") Integer num,
                            RedirectAttributes redirectAttributes) throws ExecutionException, InterruptedException {
        cartService.addToCart(skuId,num);
        redirectAttributes.addAttribute("skuId",skuId);
        return "redirect:http://cart.gulimall.com/addToCartSuccess.html";
    }

    /**
     * 跳转到成功页
     * @param skuId
     * @param model
     * @return
     */
    @GetMapping("/addToCartSuccess.html")
    public String addToCartSuccessPage(@RequestParam("skuId") Long skuId,
                                       Model model) {
        //重定向到成功页面，再次查询购物车数据即可
        CartItem cartItem = cartService.getCartItemBySkuId(skuId);
        model.addAttribute("item",cartItem);
        return "success";
    }
}
